Operator for swinging windows



F1 LED MAR. 7 v 1922 Patented ti,

in) w an 1:\ a ts a WILLIAM SCHONFIELD, OF LONDON, ENGLAND.

OPERATOR FOR SWINGING VIINDONS.

Application filed March 7, 1922.

T 0- all whom it may concern Be it known that l, lViLnnxn Sorronrrnrn, a subject of the King oi Great Britain and Ireland, residing at 8 Goring Street, St. lvlary Axe, London, E. C. 3., have invented new and useful Improvements in and Connected with Operators for Swinging lVin dows, on which application has been made for Letters Patent in Great Britain, No. 9658, filed 31st March, 1921, of which the tollowing is a specification.

The present invention relates to improvements in that class of apparatus for opening and closing skylights, taillights, casement windows and the li re in which a screw threaded rod pivotally mounted on the sash passes through and is actuated by a nut pivotally mounted on the fixed framing.

This class of apparatus has the disadvantage in use that the time employed in opening or closing a casement window or the like is relatively considerable as com :ared with an ordinary casement fastening.

The object of the present invention is to provide means whereby the nut can he released at will from the screw threaded rod to allow oi' the window heing moved to the desired position without it being necessary to screw the rod through the nut to reach that position.

Briefly stated the present invention coniprises the use of the class of apparatus described of a solid mutilated nut with a threaded portion on each side or the bore in parallel alignment. This mutilated nut is pivotally mounted in a bracket attached to the window frame and controlled by a spring tending to lreep the internal threads on opposite sides of the bore of said nut in engagement with the screw threaded rod.

My invention is illustrated by way of example in the accompanying drawings, in which Figure 1 shows a front view oi the lower part of the easement window and its frame.

Figure 2 shows a sectional plan view of Figure 1.

Figure 3 shows an end view on an enlar scale of the nut and the screwed rod in position in said nut, and

F urs l shows section on the line A. B. or Figure 3.

Referring now to the drawings; the windew 1 is hinged to the frame 2 ant 's held in the desired position by means of the Serial ll'o. 541,829.

V in the nut 5 mounted on the window frame t. its shown in Figures 8 and i the said nut 5 is pivotally mounted at 7 in the lugs 8 ol? the bracket 9 which is screwed to the window frame. The internal thread 10 in the bore oi the nut 5 is cut away as shown more particularly in Figures 3 and i so that only two or three threads on opposite sides each end of ti e nut engage with the screwed rod 3 when the nut is held on the position shown in Figure by means oi? the leaf spring 11. i

.t will be readily understood that when it is desired to move the window to adesired position without screwing the rod through the not the latter can be pressed down against the spring l and thus release its threads 10 from the rod and consequently allow the rod to he pushed through the nut. When however, the nut released, it immediately engages the rod and holds it in the set position.

ii'hat I claim is f1. i rpparatus tor opening and closing shy lights 'i tU'lllEl'litS easement windows and the like comprising crew tln'eaded rod pivotally mounted on the sasln a. bracket mounted on the fixed 'i ranie, a mutilated nut pivot ally mounted in said bracket adapted to receive said screw threaded. rod with a threaded portion on each side of its bore in parallel alig nnent and a spring hearing against said pivoted nut and tending to keep the internal threads on opposite sides '11 the here oi said nut in engagement with said screw threaded rod.

2. lipparatus tor opening and closing slaylights, tanlights, casement windows and the like, comprising a screw threaded rod pivotally mounted on the sash, av hracliet mounted on the fixed frame, a nut pivotally mounted in said hraclret adapted to receive said screw threaded rod. an inter; ll thread in the bore of said nut cut a ay so that only a small nuinher o't thr ttlS remain on opposite sides on each end of 'd nut anl a spring hea in against pivoted nut and tending to keen h on opposite sides screwed rod 3 hinged at l to the window sash and co-acting t e internal threads in thebore of said nut in cng: uneut with said threaded rod.

in witness whereof haye signed uiv name to this specification.

l Vllalil Ail l gCl-YONFI Elil). 

